andrews



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r t 3o UNITED STATES GEO. MILLER Ann o. M. MYIDECE; RIQD `LEATHER WASHER.

To all 'whom 'it may concern: 1 p

Be it known that we, GEORGE MILLER and C. M. ANDREWS, both of Providence, in the county of Providence and State of Rhode Island, have invented a newand useful Improvement in Leather Washers; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in whichw Figures l, 2, 4, 6 and 8 are side views of washers constructed according toour invention. Figs. `3, 5, 7 and 9 are central sections of ditto, the planes of section bisecting their axes longitudinally.

Similar letters of reference indicate corresponding parts in the several figures.

The object of this invention is to render leather washers much more eiicient and durable than those of usual construction and also to economize in the working upof the stock.

TheV invention consists in formin the t washers by winding leather strips o any convenient width in coil-form, as hereinafter fully described, whereby the sides or faces of the washers present the grain or fiber of the leather endwise to the running or working surfaces to which they `are ap-V plied. The convolution of the leather may be connected by cement and, in certain casesA where necessary, soft metal plates or other suitable' substance may be interposed between the convolutions in order to protect the leather from wear. i

To enable those skilled in the art to fully understand and construct our `invention we will proceed to describe it. i A strip of leather a, of any suitable widt is wound in coil-form `as shown in Figs. 1, 2, 4, 6 and 8. The strip a may be attached at one end to a mandrel of any suitable diameter, the mandrel being ,made to rotate and thereby wind the strip in coil-form, the outer end of the strip having a weight attached, connected to a spring or arranged in any suitable way so that the strip` While being woundin coil-form will be subjected to a certain degree of tension requisite to insure a proper state of compactness of the coil. In winding the strip cement is applied to it, or, the strip may have a coat of cementlapplied tofit atione "sidepreviousto'.` the winding, `in order towforin themzwhole 515 i.

`into a compact solid.inassiwhenvinishedg Ordinary glue, or fish glue, will answer very well as a cement. When thestrip is entirely; wound up it may be securedfat its peripheryl I, by a metallic band,lor `byfanfireor cord b, wound circumferentially around it, see Figs.` 2and3. i. When the` strip a,iisre1noved fromfthe mandrel a hollow "leather cylinder is `obj` tained, the length ofwhichl iswequaltothe `p 1 width of the strip,`the diameter being greater n or less accordingtothe length .of thestrip. Washers maybe cutfrom" thiscylinderrof any desired thickness. it i f i In ordinary cases theleather` alonemay be sufficiently durable asit willbe` seen that the liber of theleather `will be presented@ endwise to the running orlworkin parts to which the washerrisapplied.` 'lnsgalonei` 1 will render the washertfar moredurablev i than those cut out direct; fromfthefleather, .g as in the latter case,`th`e fiber,` or grainis presented sidewise totherunningor work-l, ing parts, and is consequently more readily. i worn. In certain cases howeverfwherewash" ers are applied to rapidlyrunninglor work ing surfaces, a plate c,:w of soft" metahfl composition for instancegsimilar` towhatj known as Babbitt metal, vmay` be interposedl i, between the convolutions of the strip a, as"-8`5"` shown in Figsf` and 17,*the1 widthof the; U plate c, and strip @,beinggequalisothati their i .i edges will be Hush witheachiother :as shown clearly in Fig. 7 A canvasorcloth strip d, as shown in Figs.f4 andf, lmay also` be inter-` `90.` posed between` the convolutionsof; the strip a, or a `compositionfof saWfdustl and glue,` e, as shown inFigs. 81al1dz9t.Variousffsu stances however may be employed asfcirc stances may require. l i 1" t. .i

By this invention it ,willbeI "th tv washers may be madeiwithbutllittle o no waste of stock as quite narrowstripsmay be y. i wound in the form; specified, whereasA illthe 1 i old mode of cutting them..(` `utdirectgfrorn` 100 the leather, there isi a great waste. `1on1'. invention therefore the washersfarenotlonly i. rendered more Vdurable butl may bey` also"` `1,: manufactured at a less cost,:and"intconse-` quence of being constructed asdescribed,` 105` they are rendered morecompactandretain" .1

the lubricating material better than those in common use. The invention is applicable in all cases where the interposition of a soft substance is required between comparatively hard and moving substances, in fact in all cases where the ordinary washers are necessary.

We do not confine ourselves to any material interposed between the convolutions of the leather strip, for various substances may be used and in many cases none may be required, the leather alone being sui'licient.

Having thus described our invention what we claim as new and desire to secure by Letters Patent, is,

A washer constructed of a leather strip wound in coil-form, and with or without the interposition of other substances between its fonvolutions, substantially as herein set orth.

GEoRGE MILLER.` CABEL M. ANDREWS.

Witnesses:

ALBEN C. PRAY, ROBERT KNIGHT. 

